[INFO] cloning repository https://github.com/piatra/rust-browser-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/piatra/rust-browser-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiatra%2Frust-browser-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiatra%2Frust-browser-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ebb806a5ff41ddf7060e6cfda805d7e7bdf6b034
[INFO] documenting piatra/rust-browser-engine against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiatra%2Frust-browser-engine" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/piatra/rust-browser-engine on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/piatra/rust-browser-engine
[INFO] finished tweaking git repo https://github.com/piatra/rust-browser-engine
[INFO] tweaked toml for git repo https://github.com/piatra/rust-browser-engine written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/piatra/rust-browser-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57e79105ebdeedc1e0dee7a2423672c7312b271bd632acd37dc67c5e2fce4a82
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "57e79105ebdeedc1e0dee7a2423672c7312b271bd632acd37dc67c5e2fce4a82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57e79105ebdeedc1e0dee7a2423672c7312b271bd632acd37dc67c5e2fce4a82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e79105ebdeedc1e0dee7a2423672c7312b271bd632acd37dc67c5e2fce4a82", kill_on_drop: false }`
[INFO] [stdout] 57e79105ebdeedc1e0dee7a2423672c7312b271bd632acd37dc67c5e2fce4a82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 131c74bc940141a5b39e95e0765daadc4c6629376d3c2992cfc2d5f48c1b0aaf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "131c74bc940141a5b39e95e0765daadc4c6629376d3c2992cfc2d5f48c1b0aaf", kill_on_drop: false }`
[INFO] [stderr]  Documenting browser v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid suffix `u` for integer literal
[INFO] [stdout]   --> src/dom.rs:39:24
[INFO] [stdout]    |
[INFO] [stdout] 39 |         for i in range(0u, self.children.len()) {
[INFO] [stdout]    |                        ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/parser.rs:28:39
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn consume_while(&mut self, test: |char| -> bool) -> String {
[INFO] [stdout]    |                                       ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `assert`
[INFO] [stdout]   --> src/parser.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |             assert!(self.consume_char() == '!')
[INFO] [stdout]    |                                                - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 62 |             assert!(self.consume_char() == '-')
[INFO] [stdout]    |             ^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for integer literal
[INFO] [stdout]    --> src/parser.rs:130:35
[INFO] [stdout]     |
[INFO] [stdout] 130 |     let mut nodes = Parser { pos: 0u, input: source }.parse_nodes();
[INFO] [stdout]     |                                   ^^ invalid suffix `u`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::fmt::Show`
[INFO] [stdout]  --> src/dom.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Show;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ no `Show` in `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]  --> src/parser.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pos: uint,
[INFO] [stdout]   |          ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `browser`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name browser src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "131c74bc940141a5b39e95e0765daadc4c6629376d3c2992cfc2d5f48c1b0aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "131c74bc940141a5b39e95e0765daadc4c6629376d3c2992cfc2d5f48c1b0aaf", kill_on_drop: false }`
[INFO] [stdout] 131c74bc940141a5b39e95e0765daadc4c6629376d3c2992cfc2d5f48c1b0aaf